Home / 102,359.28-153,509.76-64,862.76

Finding the Fourth Proportional to 102,359.28, 153,509.76 and 64,862.76

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Solution

The fourth proportional to 102,359.28, 153,509.76 and 64,862.76 is: 97,275.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,359.28 : 153,509.76 = 64,862.76 : x
  2. Step 2: Convert to fraction form
    102,359.28/153,509.76 = 64,862.76/x
  3. Step 3: Cross multiply
    102,359.28x = 153,509.76 × 64,862.76
  4. Step 4: Simplify right side
    102,359.28x = 9,957,066,720.54
  5. Step 5: Solve for x
    x = 9,957,066,720.54/102,359.28
  6. Step 6: Final answer
    x = 97,275.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.